Bionic Evolution Based Electronic Cash Scheme

Combining bionic evolution and e-cash (electronic cash), we present an improved e-cash scheme based on bionic evolution algorithm. In the scheme, the private key for e-cash generating and identity tracing is generated with evolutionary algorithm by a successive optimizing process. The adaptive optimizing of secret parameters with bionic evolution avoids the randomness and indefinite security problem in private key selection, and thus prevents generalized e-cash forgery and coalition attack by dishonest users and other outer adversaries. The optimizing algorithm can also be applied to other essential parameters, such as the private keys of TTP (Trustable Third Party) and e-cash users to further improve the security of e-cash. Besides, the optimizing algorithm can be executed in advance without any influence to the efficiency of e-cash scheme. This designing strategy not only reinforces the security and stability of e-cash scheme but also greatly improves the efficiency of software and hardware application.